You probably need to install a TCP/IP protocall. It's as easy as figuring out which to install, going into the menu, and double clicking whatever you need to install. I remember I had to do it recently to play Diablo 1 networked.

I can't see what it is right now because I'm at work, and I don't have the privs here. When I get back home with my computer (should be around 4 or 5...), I'll check it out. Send me a PM or bump this thread then if you don't have it fixed by then, and I'll post up what to try.

What is it they say about silence being golden?